From f0990383561c2a2677aa89d88a0a369767e779a7 Mon Sep 17 00:00:00 2001
From: Tom Nguyen <7121553+tunggnu@users.noreply.github.com>
Date: Tue, 16 Feb 2021 09:18:37 +0700
Subject: [PATCH] Update "Think Java: How to Think Like a Computer Scientist"
 (#5297)

* Add the 2nd Edition.
* Update the 1st Edition:
  * Replace the obsolete link with the current link.
  * Add the Interactive version link.
---
 books/free-programming-books.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/books/free-programming-books.md b/books/free-programming-books.md
index 4c57f7fe48f0c..00503b6166f8e 100644
--- a/books/free-programming-books.md
+++ b/books/free-programming-books.md
@@ -1689,7 +1689,8 @@ Kerridge (PDF) (email address *requested*, not required)
 * [The Java Tutorials](https://docs.oracle.com/javase/tutorial/index.html)
 * [The Java Web Scraping Handbook](https://www.scrapingbee.com/java-webscraping-book) - Kevin Sahin (PDF, HTML)
 * [Think Data Structures: Algorithms and Information Retrieval in Java](https://greenteapress.com/wp/think-data-structures/) - Allen B. Downey (PDF, HTML)
-* [Think Java: How to Think Like a Computer Scientist](http://greenteapress.com/thinkapjava/) - Allen B. Downey and Chris Mayfield
+* [Think Java: How to Think Like a Computer Scientist, 2nd Edition](https://greenteapress.com/wp/think-java-2e/) - Allen B. Downey and Chris Mayfield (HTML, PDF) [(Interactive version by Trinket)](https://books.trinket.io/thinkjava2/)
+  * [Think Java: How to Think Like a Computer Scientist](https://greenteapress.com/wp/think-java/) - Allen B. Downey and Chris Mayfield (HTML, PDF) [(Interactive version by Trinket)](https://books.trinket.io/thinkjava/)
 * [Welcome to Java for Python Programmers](https://runestone.academy/runestone/books/published/java4python/index.html) - Brad Miller
 * [Welcome to the Java Workshop (2006)](http://javaworkshop.sourceforge.net) - Trevor Miller
 * [What’s New in Java 8](https://leanpub.com/whatsnewinjava8/read) - Adam L. Davis